README

DockerKit is NOT part of Fruit Framework.

DockerKit is a set of tools helping you manage docker container/image from php.

DockerKit supports only bash as default shell, using other shell like zsh is not supported.

Synopsis

Write your dockerfile generator:

$f = new Fruit\DockerKit\Dockerfile('debian:latest', 'John Doe <john@example.com>');

$f
    ->distro('debian')
    ->install(['php5-fpm', 'php5'])
    ->ensureBash()
    ->grouping(true)
    ->textfileArray([
        '#!/bin/bash',
        'service php5-fpm restart',
        'trap "echo Stopping fpm...;service php5-fpm stop" INT TERM',
        '(kill -STOP $BASHPID)&',
        'wait',
    ], '/start.sh')
    ->chmod('a+x', '/start.sh')
    ->grouping(false)
    ->entrypoint(['bash', '/start.sh']);

echo $f->generate();

which generates

FROM debian:latest
MAINTAINER John Doe <john@example.com>
RUN apt-get update \
 && apt-get install -y php5-fpm php5 \
 && apt-get clean \
 && echo 'dash dash/sh boolean false'|debconf-set-selections \
 && DEBIAN_FRONTEND=noninteractive dpkg-reconfigure dash \
 && echo '#!/bin/bash'|tee /start.sh \
 && echo 'service php5-fpm restart'|tee -a /start.sh \
 && echo 'trap "echo Stopping fpm...;service php5-fpm stop" INT TERM'|tee -a /start.sh \
 && echo '(kill -STOP $BASHPID)&'|tee -a /start.sh \
 && echo 'wait'|tee -a /start.sh \
 && chmod a+x /start.sh
ENTRYPOINT ["bash","/start.sh"]

So you can pipe it to docker build like php my_generator.php|docker build -t my_tag -, or

(new Fruit\DockerKit\DockerBuild('my_tag')->run($f);

Grouping

Grouping can merge shell commands into one RUN command, reduce intermediate layers needed when building image.

Installers

You can write custom installers to share same application/library between different dockerfile generators. See src/ServiceStarter.php, which helps you generate shell script to manage service start/stop, as example.

$f = new Fruit\DockerKit\Dockerfile('debian:latest', 'John Doe <john@example.com>');
$f->distro('debian')->install(['nginx', 'php5-fpm']);

(new Fruit\DockerKit\ServiceStarter('/entry.sh'))
    ->starters([
        'service php5-fpm start',
        'service nginx start',
    ])
    ->stopers([
        'service php5-fpm stop',
        'service nginx stop',
    ])
    ->installTo($f);

echo $f->entrypoint('/entry.sh')->generate();

will generates

FROM debian:latest
MAINTAINER John Doe <john@example.com>
RUN apt-get update \
 && apt-get install -y nginx php5-fpm \
 && apt-get clean \
 && echo '#!/bin/bash'|tee /entry.sh \
 && echo 'function start() {'|tee -a /entry.sh \
 && echo '  service php5-fpm start'|tee -a /entry.sh \
 && echo '  service nginx start'|tee -a /entry.sh \
 && echo '}'|tee -a /entry.sh \
 && echo ''|tee -a /entry.sh \
 && echo 'function stop() {'|tee -a /entry.sh \
 && echo '  service php5-fpm stop'|tee -a /entry.sh \
 && echo '  service nginx stop'|tee -a /entry.sh \
 && echo '}'|tee -a /entry.sh \
 && echo 'trap stop INT TERM'|tee -a /entry.sh \
 && echo ''|tee -a /entry.sh \
 && echo '(kill -SIGSTOP $BASHPID)&'|tee -a /entry.sh \
 && echo 'wait'|tee -a /entry.sh \
 && chmod a+x /entry.sh
ENTRYPOINT /entry.sh

Supported distros

Currently we support only Debian. PR is welcome. See src/Distro/Distro.php about how to implement.

More examples

You can find more examples in test cases, especially commands not documented here.

License

You can choose any of GPL, LGPL or MIT license.